Set a MNE-Python preference key in the config file and environment.
str
The preference key to set.
str
| None
The value to assign to the preference key. If None, the key is deleted.
str
| None
The folder that contains the .mne config folder. If None, it is found automatically.
If True (default), update os.environ
in addition to
updating the MNE-Python config file.
See also
mne.set_config
#